Foundation webcrawler this, foundation webcrawler that. What are they? How do they work? Are they humans? Machines? Units composed of humans and/or machines? How do the designations work? What places do they webcrawl? Do some only webcrawl certain places? Are we talking the whole web or just the surface? Are these people/computers/units equipped with anomalous interfaces to access private areas of the web? Do they connect to game servers?

And why does everyone manage to use them so frequently yet so differently, especially with no guide?